Lockers have played a vital role in off-roading long before Marlin & Rock Crawling came around. If Crawler Gears are essential for maximum control, then lockers are essential for maximum traction on uneven terrain.
Grizzly Locker
The Grizzly Locker is our strongest automatic locker, replacing the entire carrier assembly. Designed with a patented internal mechanism, it offers unmatched strength. Its advanced design ensures robustness and ease of use. Compared to other automatic lockers, the Grizzly Locker provides softer engagement and disengagement, thanks to its freely-rotating components and improved teeth profile. Includes a one-year unconditional warranty!
Zip Air Locker
The Zip Air Locker is a cost-effective, selectable locker similar to the ARB Air Locker. It features a strong forged nodular case with high-nickel 4320 Chromoly steel internals for excellent strength and durability. Using air pressure, it fully locks or unlocks your differential at the flip of a switch. It includes a complete installation kit and is compatible with various air delivery systems. Ideal for any serious off-roader. Comes with a two-year unconditional warranty!
ARB Air Locker
The ARB Air Locker is a top-tier selectable locker that replaces the entire carrier assembly. Manufactured in Australia, ARB is renowned for its high-quality products, trusted by off-roading enthusiasts worldwide. Developed in the early 1980s, the ARB Air Locker uses air pressure to engage and fully lock both drive axles, providing maximum traction when needed. Operated by an interior-mounted switch, it requires onboard air, along with solenoid and switch wiring for seamless operation.
Spartan Locker
The Spartan Locker is an automatic "drop-in" locker that installs into your factory carrier assembly. Made in the USA, it features a strong spring-and-pin design, making it an improvement over other "lunch-box" stlye lockers. Its compact design rivals more expensive lockers, offering affordable traction without needing professional installation. Recommended for lighter vehicles with 35" or smaller tires.
Truetrac Locker
The Truetrac is a helical-gear style, limited-slip differential designed to maximize wheel traction and enhance driving performance. This maintenance-free, automatic locker operates smoothly in both forward and reverse. Its versatility makes Truetrac an ideal traction solution for almost any vehicle.
Lock Right Locker
The Lock Right Locker, similar to the Spartan, is an automatic "drop-in" locker known for its reliability and affordability. Despite being based on older technology, it has proven effective and has been reliably used by our employees. Easy to install without professional help, the Lock Right Locker is a solid choice for lighter builds with tires 35" or smaller.